The purpose of this study is to see whether pomalidomide (also known as Pomalyst) reduces the number of myeloma cells in the bones, and to see what is the best way to use pomalidomide in patients with myeloma. To do this, the investigators want to compare two types of treatment using pomalidomde. This is a randomized trial which means that the decision as to which treatment the patient will receive will be made by a computer, much like flipping a coin.